Null hypothesis Vs. Alternative hypothesis A hypothesis is a claim or statement about a population parameter. Usually, the results of a sample are applied to generalize on an entire population(s). For example, in a class of 30 students, 12 students are sampled for their test scores. The result is that the average score is 83. This result would, however, vary with another sample. A hypothesis can be a null hypothesis or an alternative hypothesis. A null hypothesis is a statement what the majority holds to be true. The opposite or complement of a null hypothesis is an alternative hypothesis. Let us understand a problem: A light bulb manufacturer claims that the average life of their light bulb is 1000 hours. A worker believes it is not 1000 hours. He tests the claim by taking a sample of 500 bulbs. A null hypothesis (Ho) is an accepted truth and assumes that the alternative claim is false. An alternative hypothesis(H1) is what the researcher is trying to prove. In this problem, the...
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